Locomotive turn-table.



N0. 662,03l. Patented Nov. 20, I900.

-' L. H. SHOEMAKER.

LUCOMOTIVE TURN TABLE.

(Application filed Mar. 16, 1900.)

(No Model.)

/A VENTOH nuams PETERS co, FHOTO-LIYNO. mamas-You n c Unirnn STATESFFICE.

ATENT LOUIS H. SHOEMAKER, OF PATERSON, NEIV JERSEY.

SPECIFICATION forming part of Letters Patent N 0. 662.031, datedNovember 20, 1900;

Application filed March 16, 1900- Serial N0. 8,91].- KNO model.)

To (0Z2) who/1t it may concern:

Be it known that I, LoUIs H. SHOEMAKER, a citizen of the United States,residing at Paterson, in the county of Passaic and State of New Jersey,have invented certain new and useful Improvements in LocomotiveTurn-Tables, of which the following is a specification.

My invention relates to turn-tables operated by other than manual power,and especially to those operated by electric motors.

The objects of my invention are, first, to provide a means by whicheither end of an ordinary locomotiveturn-table may rest directly upon asolid support while the turn-table is being loaded or unloaded and thenlifted clear of the support to permit of its being turned; second, toprovide a means by which the power from a motor attached to theturn-table may be applied to the ends of the turntable to revolve ithorizontally about its center, and, third, to automatically center theturn-table with the track by which it is to be loaded or unloaded andhold it in position during the operation. I accomplish these objects byproviding a carriage at each end of the turn-table and suitablemechanism for raising and lowering its ends from these carriages. Alatch with a wedge-shaped end actuated by the above mechanism enters abell-mouthed orifice and centers and secures the table. One of thewheels of each carriage is to act as a drive-wheel and is to be gearedto a motor attached to the turn-table in such manner as not to interferewith raising and lowering the ends of the table.

The following is a description of myinvention, reference being had tothe accompanying drawings, in which Figure l is an elevation of thecarriage, a transverse section being taken of the turn table on the lineA A, Fig. 2. Fig. 2 is a transverse section of the carriage, alongitudinal section being taken of the turn-table on the line B B, Fig.3. Fig. 2 shows in elevation the mechanism for raising and lowering endof turntable and operating-latch. Fig. 3 is a horizontal section ofcarriage and turntable and shows the principal parts in plan.

The principal parts of the carriage are the girder G, the verticalshafts V, and the angleirons A, connected so as to constitute a trusssupported by the drive-wheel D and the trailing wheel T. The verticalshafts V pass through hearings on the turn-table and serve to hold thecarriage in a vertical position.

The links Z turn on pins at the top, which are carried in hearingssecured to cross-girders in the turn-table. At the bottom they turn onpins carried in bearings secured to the girder G. The links 1 areoperated bythe bars I), pinned to the levers 1", which are keyed to theshaft 8. The shaft sis supported in bearings attached to turn-table andis actuated by the lever L and bar B. The bar B may be actuated by amechanism to which the power of the driving-motor can be temporarilyapplied by means of a clutch or otherwise or it may be actuated by anindependent motive power. The levero, keyed to the shaft 8, operates thelatch h by means of the slotted bar 12 and the counterweighted bentlever 25. The spur-wheel W is keyed to the drive-wheel axle and isactuated by the pinionp and driving-shaft S. The shaft S is supported bybearings attached to side of turn-table.

The mechanism is shown in the position it would assume with both ends ofturn-table lifted clear of the supports and ready for turning.

The carriage at one end only of turn-table is shown, the other beingprecisely similar. The bar B, extending continuously from one carriageto the other, operates the links so as to raise one end and lower theother with the same movement.

WVhat I claim to be new in my invention, and desire to secure by LettersPatent, is

1. In an ordinary turn-table, consisting of two girders continuous overa center pivot about which it turns both vertically and horizontally,carriages for supporting ends of turn-table consisting of a girdersupported by wheels on a circular track to which the ends of turn-tableare flexibly connected vertically and rigidly connected horizontally.

2. In an ordinary turn-table, consisting of two girders continuous overa center pivot about which it turns both vertically and horizontally,carriages, one at either end of the table, each consisting of a girdersupported by two wheels on a circular rail, and each connected to an endof the turn-table in such manner that the carriage is maintained in a ofturn-table to move vertically with respect to carriages, pairs of linksflexibly connected together, one link of each pair being flexiblyconnected to turn-table near its end and the other link being flexiblyconnected to carriage, and proper mechanism for actuating the jointsofsaid pairs of links, so that by one movement the links are operated atboth ends of turn-table, raising one end and lowering the other withrespect to the carriages, substantially as described.

at. In an ordinary locomotive turn-table,

with a carriage at each end to which the turntable is rigidly attachedhorizontally and flexibly attached vertically, a mechanismconsisting ofthe driving-shaft S, the pinion 79, and the spur-wheel W, by whichasuitable mo tiverpower may be applied to one of the wheels of eachcarriage in such manner as not to interfere with raising and loweringends of turn-table and by means of which the turn" table may be turnedhorizontally about its center, substantially as described.

5. In an ordinary turn-table flexibly supported at the ends fromcarriages as before described, with suitable mechanism for raising andlowering the ends of turn-table from said carriages, a latch actuated inconnection with said mechanism so made as to bring the turn-table trackinto alinement with the track on the edge of the turn-table pit andsecure it in that position, substantially as described.

, LOUIS H. SHOEMAKER.

Witnesses:

HERBERT B. SHOEMAKER, JAMES T. RILEY.

